1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <linux/config.h>
27 #include <linux/autoconf.h>
28 #include <linux/slab.h>
29 #include <linux/highmem.h>
30 #include <linux/kp30.h>
32 /* global variables */
33 extern atomic_t obd_memory;
34 extern int obd_memmax;
35 extern unsigned long obd_fail_loc;
36 extern unsigned long obd_timeout;
37 extern char obd_recovery_upcall[128];
39 #define OBD_FAIL_MDS 0x100
40 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
41 #define OBD_FAIL_MDS_GETATTR_NET 0x102
42 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
43 #define OBD_FAIL_MDS_READPAGE_NET 0x104
44 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
45 #define OBD_FAIL_MDS_SENDPAGE 0x106
46 #define OBD_FAIL_MDS_REINT_NET 0x107
47 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
48 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
49 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
50 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
51 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
52 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
53 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
54 #define OBD_FAIL_MDS_REINT_LINK 0x10f
55 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
56 #define OBD_FAIL_MDS_REINT_RENAME 0x111
57 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
58 #define OBD_FAIL_MDS_OPEN_NET 0x113
59 #define OBD_FAIL_MDS_OPEN_PACK 0x114
60 #define OBD_FAIL_MDS_CLOSE_NET 0x115
61 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
62 #define OBD_FAIL_MDS_CONNECT_NET 0x117
63 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
64 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
65 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
66 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
67 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
68 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
69 #define OBD_FAIL_MDS_STATFS_NET 0x11e
70 #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f
72 #define OBD_FAIL_OST 0x200
73 #define OBD_FAIL_OST_CONNECT_NET 0x201
74 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
75 #define OBD_FAIL_OST_GET_INFO_NET 0x203
76 #define OBD_FAIL_OST_CREATE_NET 0x204
77 #define OBD_FAIL_OST_DESTROY_NET 0x205
78 #define OBD_FAIL_OST_GETATTR_NET 0x206
79 #define OBD_FAIL_OST_SETATTR_NET 0x207
80 #define OBD_FAIL_OST_OPEN_NET 0x208
81 #define OBD_FAIL_OST_CLOSE_NET 0x209
82 #define OBD_FAIL_OST_BRW_NET 0x20a
83 #define OBD_FAIL_OST_PUNCH_NET 0x20b
84 #define OBD_FAIL_OST_STATFS_NET 0x20c
85 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
86 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
87 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
89 #define OBD_FAIL_LDLM 0x300
90 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
91 #define OBD_FAIL_LDLM_ENQUEUE 0x302
92 #define OBD_FAIL_LDLM_CONVERT 0x303
93 #define OBD_FAIL_LDLM_CANCEL 0x304
94 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
95 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
97 #define OBD_FAIL_OSC 0x400
98 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
99 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
100 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
101 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
103 /* preparation for a more advanced failure testbed (not functional yet) */
104 #define OBD_FAIL_MASK_SYS 0x0000FF00
105 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
106 #define OBD_FAIL_ONCE 0x80000000
107 #define OBD_FAILED 0x40000000
108 #define OBD_FAIL_MDS_ALL_NET 0x01000000
109 #define OBD_FAIL_OST_ALL_NET 0x02000000
111 #define OBD_FAIL_CHECK(id) ((obd_fail_loc & OBD_FAIL_MASK_LOC) == (id) && \
112 ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!=\
113 (OBD_FAILED | OBD_FAIL_ONCE)))
115 #define OBD_FAIL_RETURN(id, ret) \
117 if (OBD_FAIL_CHECK(id)) { \
118 CERROR("obd_fail_loc=%x, fail operation rc=%d\n", id, ret); \
119 obd_fail_loc |= OBD_FAILED; \
120 if ((id) & OBD_FAIL_ONCE) \
121 obd_fail_loc |= OBD_FAIL_ONCE; \
126 #include <linux/types.h>
127 #include <linux/blkdev.h>
129 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
131 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
132 #define ll_bdevname(a) __bdevname((a))
133 #define ll_lock_kernel lock_kernel()
135 #define ll_lock_kernel
136 #define ll_bdevname(a) bdevname((a))
139 static inline void OBD_FAIL_WRITE(int id, kdev_t dev)
141 if (OBD_FAIL_CHECK(id)) {
142 #ifdef CONFIG_DEV_RDONLY
143 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
144 id, ll_bdevname(dev));
145 dev_set_rdonly(dev, 2);
147 CERROR("obd_fail_loc=%x, can't fail write operation on %s\n",
148 id, ll_bdevname(dev));
150 /* We set FAIL_ONCE because we never "un-fail" a device */
151 obd_fail_loc |= OBD_FAILED | OBD_FAIL_ONCE;
155 #define OBD_ALLOC(ptr, size) \
159 (ptr) = lptr = kmalloc(s, GFP_KERNEL); \
160 if (lptr == NULL) { \
161 CERROR("kmalloc of '" #ptr "' (%d bytes) failed " \
162 "at %s:%d\n", s, __FILE__, __LINE__); \
165 memset(lptr, 0, s); \
166 atomic_add(s, &obd_memory); \
167 obd_curmem = atomic_read(&obd_memory); \
168 if (obd_curmem > obd_memmax) \
169 obd_memmax = obd_curmem; \
170 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p " \
171 "(tot %d)\n", s, lptr, obd_curmem); \
175 #ifdef CONFIG_DEBUG_SLAB
176 #define POISON(lptr, s) do {} while (0)
178 #define POISON(lptr, s) memset(lptr, 0x5a, s)
181 #define OBD_FREE(ptr, size) \
183 void *lptr = (ptr); \
188 atomic_sub(s, &obd_memory); \
189 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \
190 s, lptr, atomic_read(&obd_memory)); \
191 (ptr) = (void *)0xdeadbeef; \
194 #ifdef CONFIG_HIGHMEM
195 extern void obd_kmap_get(int count, int server);
196 extern void obd_kmap_put(int count);
198 #define obd_kmap_get(count, server) do {} while (0)
199 #define obd_kmap_put(count) do {} while (0)